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AARON B. WHITE, OF MEND'ON, MICHIGAN.A

Leners Param: Ne.l 76,863, anni April 14, 186e.

IMreoveD BOLT-rinunce.

ein .tlgemle nitriet mit tinte ttttas patent mit nuttig pnt et tip nnte.

TO ALL WHOM IT MAY CON CERN:

Be it known that I, AARON B. WHITE, of Meudon, in the county'ot` St. Joseph, and State of Michigan,

have invented a new and improved Bolt and Rivet-Trimmer; and I do hereby declare that the following is a i'ull, clear, and exact description thereof, which will enable those skilled in the art to malte and use the same,

reference being had to the'acoompanymgdrawings, forming part of this specification.

This invention relates to a new and useful improvement for cutting or trimming the ends of bolts and rivets,

an operation which has usually been performed with hammer and cold-chisel.

And theinventicn consists inthe arrangement ot' two cutting-levers, which are operated upon by other levers, whereby a double purchase, or the power ot a compound lever is obtained, as will hereinafter be more fuiiy described. i

Figure 1 represents a. longitudinal side viewof the trimmer complete, showing the arrangement of the parts otvwhich it is composed in'their proper positions when it is open or ready to grasp the bolt or rivet.

Figure 2 is a longitudinal section through the -line Similar letters of reference indicate corresponding parts. y This holt-cutterfor trimmer is formed of two cutting-levers, an, which are connected and tied together by plates (one on each side) marked b. i n

The screws or rivets by which these plates are secured to the cutters are marked c, and i'orm the fulcra on which the cutters work. y v l i.

Connected to the other ends of these cutters there are two other levers, which form handles by\which the cutters are operated. y

These lever-handles are marked d d.' They are not'rigidly connected with the cutters, but by pivot-joints, as seen at e e. The ends of each are halved, as seen in fig. 2.

ff are straps, (one on each side,) one end oi each being attached to the joint e, and crossing each other, as seen in fig. 1. ATheir other ends are attached to the lever-handles fl d', so that these latter connections, g, form the fulcro. of these levers; that is, the connecting-rivet g oi' the strapf is vthe'fulcrunn of the-lever d, and the rivetg ot the strapfis the fulcrum of the lever d. I l It will be seen that the lever-cutters a and the handle-levers d d', form two'compound levers, which operate withgreat power upon any resisting substance between the cutters, when power is applied to the handles 7i h. .I J represent stop-lugs on the levers d ol. j

The connections between these' compound levers being all exible, the cutters will adjust themselves so that the strain upon the joints will be equalized, and consequently durability and ease ofaction'a're insured.

Having thus described my nvention,-I claim as new, and desire to secure by Letters ,Patent- The combination of levers d d', having stops J J thereon, with shear-levers a a, straps b b and fj', all 'constructed, arranged, and operating substantially as described.

AARON B. WHITE.

Witnesses CEAS. H. Lnwrs,

D. K. VANNEss. 

